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4th March 2024
An 88-year-old female is being treated on the elderly care ward for being off her legs.
An 88-year-old female is being treated on the elderly care ward. She was discovered to have a urinary tract infection and is on day 3 of her treatment. She has a PMH of hypertension, urge incontinence and epilepsy. As you are doing the morning ward round, today’s bloods come back:
| Today’s bloods | Yesterday’s bloods | Reference ranges | |
| Na | 137 | 138 | (135-145 mmol/L) |
| K | 3.8 | 4.0 | (3.5-5 mmol/L) |
| Urea | 6.1 | 6.4 | (2.5-6.7 mmol/L) |
| Creatinine | 56 | 58 | (70-150 μmol/L) |
| eGFR | 68 | 67 | (>90 mL/min/1.73m2) |
| Hb | 130 | 130 | (130-180 g/L) |
| Platelets | 43 | 272 | (150-400 x109/L) |
| WCC | 5.4 | 5.9 | (4-11 x1012/L) |
| CRP | 12 | 20 | (<5 mg/L) |
Which one of the medications is the most likely cause of the deranged blood test results?
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